Revision Content

This page aims to give an overview of what version of Lightning is compatible with what version of Thunderbird. It also shows which Mozilla Platform Version is used in the respective version of Sunbird and Lightning.

The main goal of the Calendar Team is to synchronize the Lightning release cycle with Thunderbird. This usually means we will be using the latest Thunderbird and Mozilla codebase (comm-central and mozilla-central) for active development. If the Thunderbird schedule isn't yet clear, we will backport our changes to an older branch.

Lightning

Development Snapshots

The Lightning builds listed below should be considered unstable and are available for development and testing purpose only.

Stable ESR Releases

Lightning is compatible to the Thunderbird Extended Support Release (ESR) releases. We follow the ESR policy of Thunderbird and only do releases for security fixes. Additionally, there may be backported fixes for important regressions related to enterprise features like invitations.